Meteorites, crust % and -philes

Stony meteorites

Once formed part of the outer crust of a planet or asteroid, lithophile

Stony meteorite composition

Made up of silicates - silicon and oxygen

Stony iron meteorites

Possible samples between a metal core and silicate mantle

Iron meteorites

Possible cores of asteroids which were melted, causing the dense iron to sink and form a metallic core, siderophile

Iron meteorite composition

Iron nickel alloy, crystalline, bands

Siderophile

Metallic liquid - heavy metals found in the core

Chalcophile

Sulphide liquid - sulfide elements found in the core

Lithophile

Silicate liquid - rock loving elements found in the core

Atmophile

Gas phase - gas loving elements common in the hydro sphere and atmosphere

47% of the Earth's crust

Oxygen

28% of the Earth's crust

Silicon

8% of the Earth's crust

Aluminium

5% of the Earth's crust

Iron

3.5% of the Earth's crust

Calcium

3% of the Earth's crust

Sodium

2.5% of the Earth's crust

Potassium

2% of the Earth's crust

Magnesium

1% of the Earth's crust

All other elements

Describing crystalline rocks

Fine/medium/coarse crystals, euhedral/subhedral/anhedral, equicrystalline/porphyritic

Describing clastic rocks

Fine/medium/coarse grains, rounded/angular, well sorted/poorly sorted